During the post-war Partition of Germany, the gate was isolated and inaccessible immediately next to the Berlin Wall. The area around the gate was featured most prominently in the media coverage of the tearing down of the wall in 1989, and the subsequent German reunification in 1990.

Throughout its existence, the Brandenburg Gate was often a site for major historical events and is today considered not only as a symbol of the tumultuous history of Europe and Germany, but also of European unity and peace.

When a much larger Berlin was partitioned after World War II, the central borough of the city fell into the Soviet sector, adjoining the British sector at the Brandenburg Gate.

The Brandenburg Gate was not part of the old fortifications, but one of 18 gates within the Berlin Customs Wall (German: Akzisemauer), erected in the 1730s, including the old fortified city and many of its then suburbs.

The new gate was commissioned by Friedrich Wilhelm II to represent peace. The Gate was designed by Carl Gotthard Langhans, the Court Superintendent of Buildings, and built between 1788 and 1791, replacing the earlier simple guard houses siding the original gate in the Customs Wall. The gate consists of 12 Doric columns, six to each side, forming five passageways. Citizens originally were allowed to use only the outermost two on each side. Atop the gate is a Quadriga, a chariot drawn by four horses. The new gate was originally named the Peace Gate (German: Friedenstor)[2] and the goddess is Eirene, the goddess of peace.

The Brandenburg Gate has played different political roles in German history. After the 1806 Prussian defeat at the Battle of Jena-Auerstedt, Napoleon was the first to use the Brandenburg Gate for a triumphal procession,[3] and took its Quadriga to Paris.[4]

After Napoleon's defeat in 1814 and the Prussian occupation of Paris by General Ernst von Pfuel, the Quadriga was restored to Berlin.[5] It was now redesigned by Karl Friedrich Schinkel for the new role of the Brandenburg Gate as a Prussian triumphal arch; the goddess, now definitely Victoria, was equipped with the Prussian eagle and Iron Cross on her lance with a wreath of oak leaves.[2]

The Quadriga faces east, as it did when it was originally installed in 1793. Only the royal family was allowed to pass through the central archway,[4] as well as members of the Pfuel family, from 1814 to 1919. The Kaiser granted this honour to the family in gratitude to Ernst von Pfuel, who had overseen the return of the Quadriga to the top of the gate.[6] In addition, the central archway was also used by the coaches of ambassadors on the single occasion of their presenting their letters of credence to council.

When the Nazis ascended to power, they used the gate as a party symbol. The gate survived World War II and was one of the damaged structures still standing in the Pariser Platz ruins in 1945 (another being the Academy of Fine Arts). The gate was badly damaged with holes in the columns from bullets and nearby explosions. One horse’s head from the original quadriga survived, today kept in the collection of the Märkisches Museum.

Following Germany's surrender and the end of the war, the governments of East Berlin and West Berlin restored it in a joint effort. The holes were patched, but were visible for many years following the war.

Vehicles and pedestrians could travel freely through the gate, located in East Berlin, until the Berlin Wall was built, 13 August 1961. Then one of the eight Berlin Wall crossings was opened on the eastern side of the gate, usually not open for East Berliners and East Germans, who from then on needed a hard-to-obtain exit visa. On 14 August, West Berliners gathered on the western side of the gate to demonstrate against the Berlin Wall, among them West Berlin's governing Mayor Willy Brandt, who had spontaneously returned from a federal election campaigning tour in West Germany earlier on the same day.

Under the pretext that Western demonstrations required it, the East closed the checkpoint at the Brandenburg Gate the same day, 'until further notice', a situation that was to last until 22 December 1989. The wall was erected as an arc just west of the gate, cutting off access from West Berlin. On the eastern side, the "baby Wall", drawn across the eastern end of Pariser Platz rendered it off limits to East Berliners, as well. The section of wall in front of the gate was built shorter and wider to protect it from a potential Western invasion in the event of a war breaking out between the two superpowers.

A crane removes a section of the Berlin Wall near Brandenburg Gate on 21 December 1989.

When the Revolutions of 1989 occurred and the wall was demolished, the gate symbolized freedom and the desire to unify the city of Berlin. Thousands of people gathered at the wall to celebrate its fall on 9 November 1989. On 22 December 1989, the Brandenburg Gate border crossing was reopened when Helmut Kohl, the West German chancellor, walked through to be greeted by Hans Modrow, the East German prime minister. Demolition of the rest of the wall around the area took place the following year.

During 1990, the quadriga was removed from the gate as part of renovation work carried out by the East German authorities following the fall of the wall in November 1989. Germany was officially reunified in October 1990.

On 21 December 2000, the Brandenburg Gate was privately refurbished at a cost of six million euros.

On 3 October 2002, the 12th anniversary of German reunification, the Brandenburg Gate was once again opened following extensive refurbishment.

Brandenburg Gate became the main venue for the 20th-anniversary celebrations of the fall of the Berlin Wall or "Festival of Freedom" on the evening of 9 November 2009. The high point of the celebrations was when over 1000 colorfully designed foam domino tiles, each over 2.5 m tall, were lined up along the route of the former wall through the city centre. The domino "wall" was then toppled in stages converging here.[7]

The Brandenburg Gate is now again closed to vehicle traffic, and much of Pariser Platz has been turned into a cobblestonepedestrian zone. The gate, along with the broad Straße des 17. Juni avenue to the west, is also one of the large public areas in Berlin where over a million people can gather to watch stage shows or party together, watch major sport events shown on huge screens, or see fireworks at midnight on New Year's Eve.[8] After winning the 2014 FIFA World Cup, the Germany national football team held their victory rally in front of the gate.

General Secretary Gorbachev, if you seek peace, if you seek prosperity for the Soviet Union and Eastern Europe, if you seek liberalization: Come here to this gate! Mr. Gorbachev, open this gate! Mr. Gorbachev, tear down this wall!

On 25 December 1989, less than two months after the Berlin Wall began to come down, the conductor Leonard Bernstein conducted the Berlin Philharmonic in a version of the Ninth Symphony of Beethoven at the then newly opened Brandenburg Gate. In the concluding choral movement of the symphony, the famous "Ode to Joy", the word Freude ("Joy") was replaced with Freiheit ("Freedom") to celebrate the fall of the Wall and the imminent reunification of Germany.

On 12 July 1994, U.S. President Bill Clinton spoke at the Gate about peace in post–Cold War Europe.

On 9 November 2009, Chancellor Angela Merkel, walked through Brandenburg Gate with Russia’s Mikhail Gorbachev and Poland's Lech Wałęsa as part of the 20-year celebration of tearing down the Berlin Wall.[13][14]

On 13 August 2011, Germany marked the 50th anniversary of the day the Berlin Wall started to go up with a memorial service and a minute of silence in memory of those who died trying to flee to the West. "It is our shared responsibility to keep the memory alive and to pass it on to the coming generations as a reminder to stand up for freedom and democracy to ensure that such injustice may never happen again," Berlin Mayor Klaus Wowereit said. German Chancellor Angela Merkel—who grew up behind the wall in Germany's communist eastern part—also attended the commemoration. German President Christian Wulff added, "It has been shown once again: Freedom is invincible at the end. No wall can permanently withstand the desire for freedom."[15][16][17]

On 19 June 2013, U.S. President Barack Obama spoke at the Gate about nuclear arms reduction and the recently revealed U.S. internet surveillance activities.[18]

On the night of 5 January 2015, the lights illuminating the gate were completely shut off in protest against the far-right anti-Islamic Pegida demonstration.[19][20][21]